Apparatus and associated methods relate to an airfoil configured to be disposed at a distal end of a tank. In an illustrative example, the airfoil may be configured such that, when the tank travels at a predetermined minimum speed in a proximal direction substantially parallel to a longitudinal axis of the tank, the airfoil coalesces off-coming air from the tank and distally repositions a low-pressure region downstream of the tank below a plane horizontal to the longitudinal axis. The region may be distally displaced, for example, by at least one of a length scale of the tank. A cross-section of the tank may, for example, define a substantially conic section. A span of the wing may, for example, be orthogonal to the longitudinal axis. The wing may, for example, be below an upper surface of the tank. Various embodiments may advantageously reduce turbulence in the wake of the tank.

An aerodynamic wrap for use with a tank trailer illustratively includes opposing first and second side assemblies. In an illustrative embodiment, each side assembly includes an upper panel pivotably supported by the tank trailer, and a lower panel pivotably supported by the upper panel. A lower connecting member illustratively couples the lower panels of the first and second side assemblies under the belly of the tank trailer.

An unload tee has a tee body with a front side and a rear side. The unload tee further includes a door rotatably connected to front side of the tee body; a catch pin mounted on and projecting from the door; a latch assembly connected to the door, and wherein the latch assembly is positioned towards the front side of the unload tee, and further wherein the latch assembly comprises a latch tab having an ear; and a catch defined as a curve in the ear of the latch tab, wherein the catch is configured to engage the catch pin when the door is in a closed position.

The invention provides an improved drain spout that is attached to tanks for draining the liquid contained in the tank. More specifically, a drain spout that is cast as a unitary structure and comprising a smoothed radiused transition from a flanged sump to a flow pipe is provided.

A tank trailer may include a hopper, an end housing forward or rearward of the hopper, and a slide plate inside the end housing. The slide plate may be configured to help prevent breakage along welds which secure the slide plate.

A delivery system includes a transportation container for cooking oil carried by a delivery vehicle for filling a storage container located at a restaurant. A flexible conduit is temporarily connected between the transportation container and the storage container. The oil is pumped from the transportation container to the storage container. A pressure sensor, carried by the vehicle downstream the pump, monitors pressure in the storage container. A processor operates with the pressure sensor for determining a pressure level in the storage container and controls delivery of the oil for limiting a pressure level to a preselected value. The system waits a period of time and tests the pressure to allow the pressure in the storage container to equalize so that pressure in the conduit at the vehicle is the same as pressure in the storage container. The pressure level is used to establish the amount of cooking oil delivered.

The present disclosure relates to a portable self-contained hand washing unit having a plurality of separate spaced apart washing stations capable of simultaneously accommodating multiple users.

A mobile vehicle mounted hydro demolition system comprising ultra-high pressurized water through a rotating nozzle water jet for cutting concrete, including a water supply, a vacuum blower, and a vacuum container that has offset with a dewatering bag so that incoming water can be pumped off as wastewater. A remote control gives an operator immediate adjustments of the rotational speed of the nozzle; the transverse traversing speed of the nozzle; the forward advancement of the vehicle; the number of traverses the head traverses before the vehicle advances its predetermined step; the pressure of the high-pressure pump; the amount of vacuum cfm's the blowers are producing; the steering of the vehicle; and the traversing distance of the rotating nozzle. By manipulating the above parameters the depth of removal is predictable and provides a consistent depth.

A control box assembly of a tanker truck and method relating thereto is provided. The control box assembly may be coupled to a frame of the tanker truck below a tank of the tanker truck. The control box assembly may include a housing, a front wall of the housing, an opening defined by the front wall, and a control panel operably engaged with the housing. The control panel may be positioned within the opening of the front wall and the control panel may be pivotable between a first position and a second position.

A mobile vehicle mounted hydro demolition system comprising ultra-high pressurized water through a rotating nozzle water jet for cutting concrete, including a water supply, a vacuum blower, and a vacuum container that has offset with a dewatering bag so that incoming water can be pumped off as wastewater. A remote control gives an operator immediate adjustments of the rotational speed of the nozzle; the transverse traversing speed of the nozzle; the forward advancement of the vehicle; the number of traverses the head traverses before the vehicle advances its predetermined step; the pressure of the high-pressure pump; the amount of vacuum cfm's the blowers are producing; the steering of the vehicle; and the traversing distance of the rotating nozzle. By manipulating the above parameters the depth of removal is predictable and provides a consistent depth.